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United States Patent | 5,662,680 |
Desai | September 2, 1997 |
An improved electrode apparatus for use with an endoscopic surgical instrument provides an adjustable volume of tissue ablation and may be used with an RF energy source in either monopolar or bipolar output mode. The electrode apparatus may be used in any endoscopic surgical application, and provides a new method for any endoscopic treatment involving soft tissue ablation, including hysteroscopic and laparoscopic treatment of uterine fibroids/myomas.
Inventors: | Desai; Ashvin H. (2195 Trade Zone Blvd., San Jose, CA 95131) |
Appl. No.: | 331046 |
Filed: | October 28, 1994 |
Current U.S. Class: | 606/210; 600/10 |
Intern'l Class: | A61B 017/50 |
Field of Search: | 606/210,39-41,45-46 604/21,27-30,32,33,34,35,404,167,294 600/120,10 |
4316453 | Feb., 1982 | Harrison | 600/10. |
4325361 | Apr., 1982 | Harrison | 600/10. |
4365622 | Dec., 1982 | Harrison | 600/10. |
4402309 | Sep., 1983 | Harrison | 600/10. |
4402310 | Sep., 1983 | Kimura | 604/35. |
4565200 | Jan., 1986 | Cosman | 128/642. |
4776840 | Oct., 1988 | Freitas | 604/33. |
5007908 | Apr., 1991 | Rydell | 606/47. |
5069223 | Dec., 1991 | McRae | 128/734. |
5186714 | Feb., 1993 | Boudreault | 604/35. |
5195958 | Mar., 1993 | Phillips | 604/33. |
5197963 | Mar., 1993 | Parins | 606/46. |
5281218 | Jan., 1994 | Imran | 606/41. |
5370675 | Dec., 1994 | Edwards et al. | 607/101. |
5385544 | Jan., 1995 | Edwards et al. | 604/22. |
Foreign Patent Documents | |||
PCT/US93/07437 | Mar., 1994 | WO. |